What Percent (%) is a GPA of 2.5???

Hey guys. I did a search and couldn't find anything..

anyways. I'm just wondering what a GPA of 2.5 is as a percent?
I've tried google and there are so many variations and I can't get a strait answer.
My school doesn't give me a GPA they only give me a cumulative Percentage so I can't even gauge myself.

At UT a 67-69 is a 2.3 and a 70-72 is a 2.7 so a 2.5 GPA is probably somewhere around 70. I think UT is the pretty standard GPA out of 4. While I don't have first hand knowledge, I do believe some schools such as York and Ryerson (off the top of my head) use different GPA scales.

EDIT: Also, a 2.0 is 63-66 and a 3.0 is 73-76. A 60 is actually a 1.7 and an 80 is a 3.7